As 3G (3rd-generation) networks evolve worldwide, the rising demand for mobile bideo services and the enormous growth of video on the internet is creating major new revenue opportunities for mobile network operators and application developers. the text introduced a method of mobile video transmission based on J2MF, giving the method of video compressing, then describing the video compressing standard, and then describing the sofware design. the proposed mobile video method based on J2EE is typical mobil multimedia application, which has a higher availability and a wide range of applications. the users can get the video through terminal devices such as phone.